Key PointsFrom January 1 to June 30, 2026, 267 cases of smallpox B (mpox) were reported, including 10 cases without laboratory confirmation (Figure 1). The number of cases reported in...

Key Points2025 Year in ReviewA total of 1,541 EV infections were reported, less than half the number recorded in 2024 (n=3,778), which was marked by a summer outbreak of similar...

Key PointsLeptospirosis was added to the list of notifiable diseases (MSO) on August 17, 2023.From January 1 to December 31, 2025, 562 cases of leptospirosis were reported, including 274...

Key PointsA widespread heat wave affected mainland France between July 4 and 22. During this period, the entire population of mainland France was subject to at least one day of an orange...

Key PointsChikungunya, Dengue, and ZikaLocally Acquired CasesAs of July 27, 2026, two unrelated locally acquired cases of dengue fever were identified in the Tarn and Hérault departments...

Key PointsNationally, the number of deaths from all causes reported by INSEE continued to decline in Week 29 (July 13–19) and appears to be returning to the usual range of fluctuation in...

Key PointsIn Week 30 (July 20–26, 2026), the number of emergency department visits and hospitalizations following those visits decreased among children (-9%, or 6,803 fewer visits, and...

Key PointsAfter a high level of activity in Week 29, partly due to the July 14 long weekend, activity at SOS Médecins clinics in Week 30 (July 20–26, 2026) was significantly lower than...

Key PointsPeriod from May 1, 2026, to July 15, 2026In 2026, the monitoring period was extended from May 1 to September 30, instead of June 1 to September 30 as it was from 2023 to...

Key PointsChikungunya, Dengue, and ZikaIndigenous CasesAs of July 20, 2026, two locally acquired cases of dengue have been identified in the Tarn and Hérault departments...